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Measurement and correlation of activity coefficients for the ternary system (sodium bromide  +  sodium acetate  +  water) at T =  298.15 K

✍ Scribed by Weidong Yan; Rui Zhang; Ranran Fu; Shijun Han

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 89 KB
Volume: 34
Category: Article
ISSN: 0021-9614
DOI: 10.1006/jcht.2002.0958

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✦ Synopsis

Activity coefficients of sodium bromide in aqueous mixtures of sodium bromide and sodium acetate were determined by e.m.f. measurements at T = 298.15 K and the total ionic strengths of (0.1, 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0) mol • kg -1 . The experimental results were fitted using the Scatchard-Rush-Johnson model and Pitzer model. The osmotic coefficients, excess Gibbs free energies of mixing and activity coefficients of sodium acetate in aqueous mixtures were calculated using Pitzer mixing ion interaction parameters obtained in this work.

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✦ Synopsis

Measurement and correlation of activity coefficients for the ternary system (sodium bromide + sodium acetate + water) at T = 298.15 K